Strongly emissive individual DNA-encapsulated Ag nanoclusters as single-molecule fluorophores.

Abstract

The water-soluble, near-IR-emitting DNA-encapsulated silver nanocluster presented herein exhibits extremely bright and photostable emission on the single-molecule and bulk levels. The photophysics have been elucidated by intensity-dependent correlation analysis and suggest a heavy atom effect of silver that rapidly depopulates an excited dark level before… (More)

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4 Figures and Tables